Article ID: CBB171217921

Darwin's Hypotheses on the Origin of Domestic Animals and the History of German Shepherd Dogs (2008)

unapi

Charles Darwin devoted the first chapter of his book On the Origin of Species (1859) to the principles and products of artificial selection and concluded that this process is analogous to natural selection in the wild. With respect to the origin of the domestic dog (Canis familiaris), Darwin suggested that several canid species provided ancient founder populations for this phenotypically diverse mammal. In contrast to Darwin, the geologist Charles Lyell argued in 1859, with reference to the work of the zoologist Thomas Bell, that all breeds of the domestic dog are derived from one species, the grey wolf (Canis lupus). In this article we show that Darwin’s analogy between artificial and natural selection was correct: domestication involves large, heritable phenotypic changes in an animal species over many subsequent generations and hence represents a rapid evolutionary process. We deduce the “Bell-Lyell” hypothesis and document that the grey wolf is indeed the immediate ancestor of the domestic dog. In his book on the Expression of the Emotions in Man and Animals, Darwin (1872) described the behaviour of a half-bred German Shepherd. Based on these observations, we summarize the history of this new breed of dog that originated in 1899. We conclude that quantitative data on body mass and other parameters, documented in a series of breeding records published between 1922 and 2002, may yield insights into the dynamics of this ongoing microevolutionary process.

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Authors & Contributors
Rudwick, Martin J.S.
Gohau, Gabriel
Amy Way
Flach, Sabine
Thorson, Robert M
van Wyhe, John
Journals
British Journal for the History of Science
Studies in History of Biology
Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences
Studies in History and Philosophy of Science
Sciences et Techniques en Perspective
Modern Language Review
Publishers
Ashgate Publishing
John Wiley & Sons
Harvard University Press
Princeton University
Concepts
Geology
Evolution
Discovery in science
Natural selection
Earth sciences
Scientific priority
People
Darwin, Charles Robert
Lyell, Charles
Wallace, Alfred Russel
Linnaeus, Carolus
Lamarck, Jean Baptiste Antoine Pierre de Monet de
Vaughan, Thomas
Time Periods
19th century
20th century
18th century
21st century
17th century
Places
Great Britain
England
United States
Europe
Australia
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